Class: YTLJit::VM::YARVTranslatorBase

Inherits:
Object
  • Object
show all
Defined in:
lib/ytljit/vm_trans.rb

Instance Method Summary collapse

Constructor Details

#initialize(iseqs) ⇒ YARVTranslatorBase

Returns a new instance of YARVTranslatorBase.



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# File 'lib/ytljit/vm_trans.rb', line 118

def initialize(iseqs)
  @iseqs = iseqs
end

Instance Method Details

#translate(context = nil) ⇒ Object 



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# File 'lib/ytljit/vm_trans.rb', line 122

def translate(context = nil)
  if context == nil then
    context = YARVContext.new
  end
  @iseqs.each do |code|
    pos = "#{code.header['filename']}:#{context.current_line_no}"
    context.enc_pos_in_source = pos
    if code.header['type'] == :block then
      lstr = context.enc_label + "+blk+" + 
             context.current_method_node.to_s
      context.enc_label = lstr
    end
    translate_block(code, context)
  end
  
  context.the_top
end

#translate_block(code, context) ⇒ Object 



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# File 'lib/ytljit/vm_trans.rb', line 160

def translate_block(code, context)
  visit_block_start(code, nil, context)
  translate_main(code, context)
  visit_block_end(code, nil, context)
end

#translate_main(code, context) ⇒ Object 



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# File 'lib/ytljit/vm_trans.rb', line 140

def translate_main(code, context)
  code.body.each do |ins|
    pos = "#{code.header['filename']}:#{context.current_line_no}"
    context.enc_pos_in_source = pos
    if ins == nil then
      # do nothing

    elsif ins.is_a?(Fixnum) then
      # line no

      context.current_line_no = ins
    elsif ins.is_a?(Symbol) then
      context.not_reached_pos = false
      visit_symbol(code, ins, context)

    elsif !context.not_reached_pos then
      opname = ins[0].to_s
      send(("visit_" + opname).to_sym, code, ins, context)
    end
  end
end